Compound of acetyl cellulose and process of making the same.



a citizen of the United Newark, in the county rinrrao sra'rns mm cur os.

WILLIAM ,G. LINDSAY, OF NEWARK, NEW JERSEY, ASSIGNOR T0 TI IE CELLULOID COMPANY, A CORPORATION OF NEW JERSEY. i

COMPOUND OE AGE'I'YL CELLULOSE AND PROCESS OF MAKING THE SAME.

No Drawing.

To all whom it may concern Be it known that I, WILLIAM G. LINDSAY,

of New J ersey, have invented a certain new and useful Compound of Acetyl Cellulose and Process for Making the Same, of which the following is a full, clear, and exact specification. Y

The invention is especiallyuseful 'infits application to films for photographic purposes, although such application maybe extended to the so-called solid compounds.

The object of the invention is to impart permanent flexibility and toughness of a high degree to products resulting from the admixture of an organic derivative of cellulose such as acetyl cellulose with various solvents therefor. In fact, use of such alcoholsin conjunction with the usual solvents not only increases the flexibility and elasticity, but the tensile strength as well. I have discovered that by the use of the .liquid monohydroxy aliphatic alcohols havclaimed by ing more than two carbon atoms, the characteristics of durability, toughness and flexibility are imparted to the film. These char.- acteristics are not attained by the use of ethyl or methyl alcohol.

As a mixture of. the alcohols herein re ferred to, the ordinary fusel oil of-commerce is a good example. I have found that the ordinary commercial fusel oil imparts to the acetyl cellulose mixtures herein described the peculiar and valuable properties this invention. Also, when the I ordinary commercial grade of fusel oil is sub jected to fractional distillation, I find that sulfonamid, or the like,

- the different :in, varying proportions, degree of flexibility and elasticity to the fractions, either alone or'mixed mparta certain finished product.

In order to carry out my solution for films or varnishes or other similar purposes, I take one hun red (100) parts of acetyl cellulose by weig t and to this acetyl cellulose dissolved in a suitable solvent, such, for example, as a mixture of ethylene chlorid and alcohol, I add from ten (10) to forty (40) parts of a solid such as camphor,-triphenyl phosphate, paratoluoland from five (5) to thirty (30) arts. of one or m e f he Specification of Letters Patent.

States, residing atof Essex and State .solution.

tained by dissolving the invention I may I solvent, and a liquid proceed as follows: In making a flowable,

alcohols herein specified, as above'describ'ed. The solvent for the acetyl cellulose should also act as a solvent for the other specified ingredients. The solution or mixture thus produced, if intended for-the manufacture of films, is then spread upon a suitable surface such as aglass plate or polished metal support and the excess of solvent allowed to evaporate according to the means and practice well known to the art. The choice of the acetyl cellulose depends upon the result to be obtained, as I have found in herein specified by means of a suitable solvent, beneficial results are obtained with practically all varieties. However, I prefer that variety of plastic in chloroform and insoluble in acetone, although I may use with satisfactory results that variety of acetyl cellulose which is plastic in chloroform and also soluble in acetone to the extent of producing a flowable dition of the alcohols herein specified im-' parts to the product permanent toughness and flexibility of a combination is particularly well adaptedfo'r high degree.- Such a theproduction of plastic masses. l.

2 What I claim and-desire to secure by Letters Patent; is

1. A composition of matter containing acetyl cellulose and a liquid monohydroxy aliphatic alcohol having more than two can 'bon atoms.

2. A composition of matter containing an acetyl' cellulose and triphenyl phosphate, ob-

same in a common monohydroxy aliphatic alcohol having more thantwo carbon atoms.

3. A composition of matter containing an ac'etyl cellulose, approximately 100 parts, triphenyl phosphate,

common solvent, and from 5 to 30 partsof a liquid mono-hydroxy aliphatic alcohol hav- 'ing more than two carbon atoms.

I Patented Oct. 3, 1916. hpplication filed January 29, 1914. Serial at. 815,110. v

l acetyl cellulose which is- States Patent No. 1,027,616

approximately 10-to' 4 0- parts, obtained by dissolvingthe same in a practice that by. incorporating the' alcohols acetyl cellulose plastic in chloroform and a1 non-inflammablematerial' obtained by diss solving the same in a common solvent and a liquid mono-hydroxy aliphatic alcohol havin g more thantwocarbon atoms.

and a liquid mono-hydroxy aliphatic alcohol .the same in a common'solvent, and a liquid mono-hydroxy aliphatic alcohol having more than two carbon atoms." i

v 5.'.A composition of matter containingan acetyl cellulose plastic in chloroform, a 1 liquid monohydroxy, aliphatic alcohol having more than two carbon atoms, and asolvent. v g 1 6. A composition of matter containing an acetyl cellulose and a non-inflammable material obtained by dissolving the samema 5 common solvent to' which has been. added a liquid mono-hydroxyfaliphatic alcohol haV- ing morethan two carbon atoms.

7. i ,A composition of matter containlng an 8. A composition of matter containing an organic derivativegof cellulose and a noninflammable material obtained. by dissolving the same in a; solvent mixture of a chlori- Ilated hydrocarbon and an aliphatic alcohol, and a liquid for imparting permanent toughness and flexibility to thecompositionl 9. A composition of matter containing-an organic derivative of cellulose-and a noninflammable material obtained by dissolving ,the'same-in a' solvent mixture ofa chlorinated hydrocarbon and an aliphatic alcohol,

having more than two carbon atoms.

'10. A composition of matter containing an organic derivative of cellulose and anoninflammable'material obtained by dissolving the .samein a solvent fmixtureof a. chlori- -n'ated hydrocarbon and analiphatic alcohol,

andfusel'oil. v

11. A composition of matter containing an "organic? derivative of cellulose phosphate, obtained by dissolving the same in a solvent mixture of a, chlorinated hydrocarbon and an aliphatic alcohol, and a liquid for imparting toughness and flexibility to the product. i 1 i --12. A composition of matter containing an organic derivative of cellu'lose'and triphenyl phosphateobtained bydissolving the same in a solvent mixture of a chlorinated hydro carbon and an aliphatic alcohol, and a liquid i mono; hydroxy' aliphatic alcohol, having more than two carbon atoms.

13, A composition of matter containing an in'a solvent mixture of a v fuseljoil. j

and triphenyl organic derivative of cellulose and trlpnenyl phosphate obtained by dissolving the 'samtv chlorinated hrydi-n carbon and an aliphatic alcohol, solvent, a ad 14. A composition of matter containing acetylcellulose and triphenyl phosphate ob- 'tainedbyi dissolving the same ina solvent mixture 'Of a chlorinated hydrocarbon and an aliphatic. alcohol, and fusel oil.

The process which consists in dissolvfbon atoms, and dryingthe same.

18. The process ofmaking a composition of matter, which consists indissolving an acetyl cellulose-plastic in chlorofdrm and triphenyl phosphate in a' common "solvent, adding a liquid mono-hydroxy alcohol havthe same.

'19. The process of making a composition ing more than two carbon atoms, and drying of matter, which consists in dissolving an acetyl cellulose and a liquid mono-hydroxy aliphatic alcoholhaving more than two carbon' atoms in asolvent, spreading; such solution upon a suitable surface and permitting the excess of solvent to evaporate.

20. The process of making a composition of matter, which consists in dissolving an acetyl cellulose, a liquid mono-hydroxy aliphatic alcoholhaving more than two carbon atoms in a solvent, spreading the solution upon a suitable surface and permitting .the excess of solvent to evaporate.

In testimony whereof I affix in presence of two witnesses. WILLIAM G.'LINDSAY.

my signature,

i witnessesi c. v. EDWAR S,

King anacetyl cellulose-in a solvent to which fiorrectio'ns in- Letters Patent No. 1,199,799.

It is hereby certified that in Letters Patent No. 1,199,799, granted October 3,

1916, upon the application of William GdLind say, of Newark, New'Jers'ey, for any improvement in Compounds of Acetyl Cellulose and Proces ses of Making the Same, errors appear in the printed specification requiring correction as follows): Page 1, lin'e19, after the periodinsert the sentence I have discovered that the liquid mono-hydrosty aliphatic alcohols having {more titlin two carbonatoms, wet as propyl, batyl, amyl, dcc alone and in various admixtures,

have the property of imparting to such products a high degree of'permaa ent toaglwiess,

' flexibility and elasticity withoatimpairing the other desirable charaetmistica;

and that the said Letters 4 I Patent should be read with these corrections therein that thesame may confo zm v Page 2, line 59, claim 13, cancel the word solvent to the record of the case in the Patent Ofiice. I

Signedand sealed this 31st day of October; A. D., 1916.- u

[SEAL] R. H TEHEAD, Cl. 10640. Acting Commissioner-0f Patents. 

